2 * FFplay : Simple Media Player based on the FFmpeg libraries
3 * Copyright (c) 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #define _XOPEN_SOURCE 600
28 #include "libavutil/avstring.h"
29 #include "libavutil/colorspace.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavcore/imgutils.h"
32 #include "libavcore/parseutils.h"
33 #include "libavcore/samplefmt.h"
34 #include "libavformat/avformat.h"
35 #include "libavdevice/avdevice.h"
36 #include "libswscale/swscale.h"
37 #include "libavcodec/audioconvert.h"
38 #include "libavcodec/opt.h"
39 #include "libavcodec/avfft.h"
42 # include "libavfilter/avfilter.h"
43 # include "libavfilter/avfiltergraph.h"
49 #include <SDL_thread.h>
52 #undef main /* We don't want SDL to override our main() */
58 const char program_name[] = "FFplay";
59 const int program_birth_year = 2003;
64 #define MAX_QUEUE_SIZE (15 * 1024 * 1024)
65 #define MIN_AUDIOQ_SIZE (20 * 16 * 1024)
68 /* SDL audio buffer size, in samples. Should be small to have precise
69 A/V sync as SDL does not have hardware buffer fullness info. */
70 #define SDL_AUDIO_BUFFER_SIZE 1024
72 /* no AV sync correction is done if below the AV sync threshold */
73 #define AV_SYNC_THRESHOLD 0.01
74 /* no AV correction is done if too big error */
75 #define AV_NOSYNC_THRESHOLD 10.0
77 #define FRAME_SKIP_FACTOR 0.05
79 /* maximum audio speed change to get correct sync */
80 #define SAMPLE_CORRECTION_PERCENT_MAX 10
82 /* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
83 #define AUDIO_DIFF_AVG_NB 20
85 /* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
86 #define SAMPLE_ARRAY_SIZE (2*65536)
88 static int sws_flags = SWS_BICUBIC;
90 typedef struct PacketQueue {
91 AVPacketList *first_pkt, *last_pkt;
99 #define VIDEO_PICTURE_QUEUE_SIZE 2
100 #define SUBPICTURE_QUEUE_SIZE 4
102 typedef struct VideoPicture {
103 double pts; ///<presentation time stamp for this picture
104 double target_clock; ///<av_gettime() time at which this should be displayed ideally
105 int64_t pos; ///<byte position in file
107 int width, height; /* source height & width */
109 enum PixelFormat pix_fmt;
112 AVFilterBufferRef *picref;
116 typedef struct SubPicture {
117 double pts; /* presentation time stamp for this picture */
122 AV_SYNC_AUDIO_MASTER, /* default choice */
123 AV_SYNC_VIDEO_MASTER,
124 AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
127 typedef struct VideoState {
128 SDL_Thread *parse_tid;
129 SDL_Thread *video_tid;
130 SDL_Thread *refresh_tid;
131 AVInputFormat *iformat;
140 int read_pause_return;
142 int dtg_active_format;
147 double external_clock; /* external clock base */
148 int64_t external_clock_time;
151 double audio_diff_cum; /* used for AV difference average computation */
152 double audio_diff_avg_coef;
153 double audio_diff_threshold;
154 int audio_diff_avg_count;
157 int audio_hw_buf_size;
158 /* samples output by the codec. we reserve more space for avsync
160 DECLARE_ALIGNED(16,uint8_t,audio_buf1)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
161 DECLARE_ALIGNED(16,uint8_t,audio_buf2)[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
163 unsigned int audio_buf_size; /* in bytes */
164 int audio_buf_index; /* in bytes */
165 AVPacket audio_pkt_temp;
167 enum AVSampleFormat audio_src_fmt;
168 AVAudioConvert *reformat_ctx;
170 int show_audio; /* if true, display audio samples */
171 int16_t sample_array[SAMPLE_ARRAY_SIZE];
172 int sample_array_index;
176 FFTSample *rdft_data;
179 SDL_Thread *subtitle_tid;
181 int subtitle_stream_changed;
182 AVStream *subtitle_st;
183 PacketQueue subtitleq;
184 SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
185 int subpq_size, subpq_rindex, subpq_windex;
186 SDL_mutex *subpq_mutex;
187 SDL_cond *subpq_cond;
190 double frame_last_pts;
191 double frame_last_delay;
192 double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
196 double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
197 double video_current_pts_drift; ///<video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
198 int64_t video_current_pos; ///<current displayed file pos
199 VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
200 int pictq_size, pictq_rindex, pictq_windex;
201 SDL_mutex *pictq_mutex;
202 SDL_cond *pictq_cond;
204 struct SwsContext *img_convert_ctx;
207 // QETimer *video_timer;
209 int width, height, xleft, ytop;
212 AVFilterContext *out_video_filter; ///<the last filter in the video chain
216 float skip_frames_index;
220 static void show_help(void);
221 static int audio_write_get_buf_size(VideoState *is);
223 /* options specified by the user */
224 static AVInputFormat *file_iformat;
225 static const char *input_filename;
226 static const char *window_title;
227 static int fs_screen_width;
228 static int fs_screen_height;
229 static int screen_width = 0;
230 static int screen_height = 0;
231 static int frame_width = 0;
232 static int frame_height = 0;
233 static enum PixelFormat frame_pix_fmt = PIX_FMT_NONE;
234 static int audio_disable;
235 static int video_disable;
236 static int wanted_stream[AVMEDIA_TYPE_NB]={
237 [AVMEDIA_TYPE_AUDIO]=-1,
238 [AVMEDIA_TYPE_VIDEO]=-1,
239 [AVMEDIA_TYPE_SUBTITLE]=-1,
241 static int seek_by_bytes=-1;
242 static int display_disable;
243 static int show_status = 1;
244 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
245 static int64_t start_time = AV_NOPTS_VALUE;
246 static int64_t duration = AV_NOPTS_VALUE;
247 static int debug = 0;
248 static int debug_mv = 0;
250 static int thread_count = 1;
251 static int workaround_bugs = 1;
253 static int genpts = 0;
254 static int lowres = 0;
255 static int idct = FF_IDCT_AUTO;
256 static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
257 static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
258 static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
259 static int error_recognition = FF_ER_CAREFUL;
260 static int error_concealment = 3;
261 static int decoder_reorder_pts= -1;
263 static int exit_on_keydown;
264 static int exit_on_mousedown;
266 static int framedrop=1;
268 static int rdftspeed=20;
270 static char *vfilters = NULL;
273 /* current context */
274 static int is_full_screen;
275 static VideoState *cur_stream;
276 static int64_t audio_callback_time;
278 static AVPacket flush_pkt;
280 #define FF_ALLOC_EVENT (SDL_USEREVENT)
281 #define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
282 #define FF_QUIT_EVENT (SDL_USEREVENT + 2)
284 static SDL_Surface *screen;
286 static int packet_queue_put(PacketQueue *q, AVPacket *pkt);
288 /* packet queue handling */
289 static void packet_queue_init(PacketQueue *q)
291 memset(q, 0, sizeof(PacketQueue));
292 q->mutex = SDL_CreateMutex();
293 q->cond = SDL_CreateCond();
294 packet_queue_put(q, &flush_pkt);
297 static void packet_queue_flush(PacketQueue *q)
299 AVPacketList *pkt, *pkt1;
301 SDL_LockMutex(q->mutex);
302 for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
304 av_free_packet(&pkt->pkt);
311 SDL_UnlockMutex(q->mutex);
314 static void packet_queue_end(PacketQueue *q)
316 packet_queue_flush(q);
317 SDL_DestroyMutex(q->mutex);
318 SDL_DestroyCond(q->cond);
321 static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
325 /* duplicate the packet */
326 if (pkt!=&flush_pkt && av_dup_packet(pkt) < 0)
329 pkt1 = av_malloc(sizeof(AVPacketList));
336 SDL_LockMutex(q->mutex);
342 q->last_pkt->next = pkt1;
345 q->size += pkt1->pkt.size + sizeof(*pkt1);
346 /* XXX: should duplicate packet data in DV case */
347 SDL_CondSignal(q->cond);
349 SDL_UnlockMutex(q->mutex);
353 static void packet_queue_abort(PacketQueue *q)
355 SDL_LockMutex(q->mutex);
357 q->abort_request = 1;
359 SDL_CondSignal(q->cond);
361 SDL_UnlockMutex(q->mutex);
364 /* return < 0 if aborted, 0 if no packet and > 0 if packet. */
365 static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
370 SDL_LockMutex(q->mutex);
373 if (q->abort_request) {
380 q->first_pkt = pkt1->next;
384 q->size -= pkt1->pkt.size + sizeof(*pkt1);
393 SDL_CondWait(q->cond, q->mutex);
396 SDL_UnlockMutex(q->mutex);
400 static inline void fill_rectangle(SDL_Surface *screen,
401 int x, int y, int w, int h, int color)
408 SDL_FillRect(screen, &rect, color);
412 /* draw only the border of a rectangle */
413 void fill_border(VideoState *s, int x, int y, int w, int h, int color)
417 /* fill the background */
421 w2 = s->width - (x + w);
427 h2 = s->height - (y + h);
430 fill_rectangle(screen,
434 fill_rectangle(screen,
435 s->xleft + s->width - w2, s->ytop,
438 fill_rectangle(screen,
439 s->xleft + w1, s->ytop,
440 s->width - w1 - w2, h1,
442 fill_rectangle(screen,
443 s->xleft + w1, s->ytop + s->height - h2,
444 s->width - w1 - w2, h2,
449 #define ALPHA_BLEND(a, oldp, newp, s)\
450 ((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
452 #define RGBA_IN(r, g, b, a, s)\
454 unsigned int v = ((const uint32_t *)(s))[0];\
455 a = (v >> 24) & 0xff;\
456 r = (v >> 16) & 0xff;\
457 g = (v >> 8) & 0xff;\
461 #define YUVA_IN(y, u, v, a, s, pal)\
463 unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\
464 a = (val >> 24) & 0xff;\
465 y = (val >> 16) & 0xff;\
466 u = (val >> 8) & 0xff;\
470 #define YUVA_OUT(d, y, u, v, a)\
472 ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
478 static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh)
480 int wrap, wrap3, width2, skip2;
481 int y, u, v, a, u1, v1, a1, w, h;
482 uint8_t *lum, *cb, *cr;
485 int dstx, dsty, dstw, dsth;
487 dstw = av_clip(rect->w, 0, imgw);
488 dsth = av_clip(rect->h, 0, imgh);
489 dstx = av_clip(rect->x, 0, imgw - dstw);
490 dsty = av_clip(rect->y, 0, imgh - dsth);
491 lum = dst->data[0] + dsty * dst->linesize[0];
492 cb = dst->data[1] + (dsty >> 1) * dst->linesize[1];
493 cr = dst->data[2] + (dsty >> 1) * dst->linesize[2];
495 width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1);
497 wrap = dst->linesize[0];
498 wrap3 = rect->pict.linesize[0];
499 p = rect->pict.data[0];
500 pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */
508 YUVA_IN(y, u, v, a, p, pal);
509 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
510 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
511 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
517 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
518 YUVA_IN(y, u, v, a, p, pal);
522 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
524 YUVA_IN(y, u, v, a, p + BPP, pal);
528 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
529 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
530 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
537 YUVA_IN(y, u, v, a, p, pal);
538 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
539 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
540 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
544 p += wrap3 - dstw * BPP;
545 lum += wrap - dstw - dstx;
546 cb += dst->linesize[1] - width2 - skip2;
547 cr += dst->linesize[2] - width2 - skip2;
549 for(h = dsth - (dsty & 1); h >= 2; h -= 2) {
555 YUVA_IN(y, u, v, a, p, pal);
559 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
562 YUVA_IN(y, u, v, a, p, pal);
566 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
567 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
568 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
574 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
575 YUVA_IN(y, u, v, a, p, pal);
579 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
581 YUVA_IN(y, u, v, a, p + BPP, pal);
585 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
589 YUVA_IN(y, u, v, a, p, pal);
593 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
595 YUVA_IN(y, u, v, a, p + BPP, pal);
599 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
601 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
602 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
606 p += -wrap3 + 2 * BPP;
610 YUVA_IN(y, u, v, a, p, pal);
614 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
617 YUVA_IN(y, u, v, a, p, pal);
621 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
622 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
623 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
629 p += wrap3 + (wrap3 - dstw * BPP);
630 lum += wrap + (wrap - dstw - dstx);
631 cb += dst->linesize[1] - width2 - skip2;
632 cr += dst->linesize[2] - width2 - skip2;
634 /* handle odd height */
641 YUVA_IN(y, u, v, a, p, pal);
642 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
643 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
644 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
650 for(w = dstw - (dstx & 1); w >= 2; w -= 2) {
651 YUVA_IN(y, u, v, a, p, pal);
655 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
657 YUVA_IN(y, u, v, a, p + BPP, pal);
661 lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
662 cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
663 cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
670 YUVA_IN(y, u, v, a, p, pal);
671 lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
672 cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
673 cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
678 static void free_subpicture(SubPicture *sp)
680 avsubtitle_free(&sp->sub);
683 static void video_image_display(VideoState *is)
689 int width, height, x, y;
693 vp = &is->pictq[is->pictq_rindex];
696 if (vp->picref->video->pixel_aspect.num == 0)
699 aspect_ratio = av_q2d(vp->picref->video->pixel_aspect);
702 /* XXX: use variable in the frame */
703 if (is->video_st->sample_aspect_ratio.num)
704 aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
705 else if (is->video_st->codec->sample_aspect_ratio.num)
706 aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
710 if (aspect_ratio <= 0.0)
712 aspect_ratio *= (float)vp->width / (float)vp->height;
713 /* if an active format is indicated, then it overrides the
716 if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
717 is->dtg_active_format = is->video_st->codec->dtg_active_format;
718 printf("dtg_active_format=%d\n", is->dtg_active_format);
722 switch(is->video_st->codec->dtg_active_format) {
723 case FF_DTG_AFD_SAME:
728 aspect_ratio = 4.0 / 3.0;
730 case FF_DTG_AFD_16_9:
731 aspect_ratio = 16.0 / 9.0;
733 case FF_DTG_AFD_14_9:
734 aspect_ratio = 14.0 / 9.0;
736 case FF_DTG_AFD_4_3_SP_14_9:
737 aspect_ratio = 14.0 / 9.0;
739 case FF_DTG_AFD_16_9_SP_14_9:
740 aspect_ratio = 14.0 / 9.0;
742 case FF_DTG_AFD_SP_4_3:
743 aspect_ratio = 4.0 / 3.0;
750 if (is->subpq_size > 0)
752 sp = &is->subpq[is->subpq_rindex];
754 if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
756 SDL_LockYUVOverlay (vp->bmp);
758 pict.data[0] = vp->bmp->pixels[0];
759 pict.data[1] = vp->bmp->pixels[2];
760 pict.data[2] = vp->bmp->pixels[1];
762 pict.linesize[0] = vp->bmp->pitches[0];
763 pict.linesize[1] = vp->bmp->pitches[2];
764 pict.linesize[2] = vp->bmp->pitches[1];
766 for (i = 0; i < sp->sub.num_rects; i++)
767 blend_subrect(&pict, sp->sub.rects[i],
768 vp->bmp->w, vp->bmp->h);
770 SDL_UnlockYUVOverlay (vp->bmp);
776 /* XXX: we suppose the screen has a 1.0 pixel ratio */
778 width = ((int)rint(height * aspect_ratio)) & ~1;
779 if (width > is->width) {
781 height = ((int)rint(width / aspect_ratio)) & ~1;
783 x = (is->width - width) / 2;
784 y = (is->height - height) / 2;
785 if (!is->no_background) {
786 /* fill the background */
787 // fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
789 is->no_background = 0;
791 rect.x = is->xleft + x;
792 rect.y = is->ytop + y;
795 SDL_DisplayYUVOverlay(vp->bmp, &rect);
798 fill_rectangle(screen,
799 is->xleft, is->ytop, is->width, is->height,
800 QERGB(0x00, 0x00, 0x00));
805 static inline int compute_mod(int a, int b)
814 static void video_audio_display(VideoState *s)
816 int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
817 int ch, channels, h, h2, bgcolor, fgcolor;
819 int rdft_bits, nb_freq;
821 for(rdft_bits=1; (1<<rdft_bits)<2*s->height; rdft_bits++)
823 nb_freq= 1<<(rdft_bits-1);
825 /* compute display index : center on currently output samples */
826 channels = s->audio_st->codec->channels;
827 nb_display_channels = channels;
829 int data_used= s->show_audio==1 ? s->width : (2*nb_freq);
831 delay = audio_write_get_buf_size(s);
834 /* to be more precise, we take into account the time spent since
835 the last buffer computation */
836 if (audio_callback_time) {
837 time_diff = av_gettime() - audio_callback_time;
838 delay -= (time_diff * s->audio_st->codec->sample_rate) / 1000000;
841 delay += 2*data_used;
842 if (delay < data_used)
845 i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
846 if(s->show_audio==1){
848 for(i=0; i<1000; i+=channels){
849 int idx= (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
850 int a= s->sample_array[idx];
851 int b= s->sample_array[(idx + 4*channels)%SAMPLE_ARRAY_SIZE];
852 int c= s->sample_array[(idx + 5*channels)%SAMPLE_ARRAY_SIZE];
853 int d= s->sample_array[(idx + 9*channels)%SAMPLE_ARRAY_SIZE];
855 if(h<score && (b^c)<0){
862 s->last_i_start = i_start;
864 i_start = s->last_i_start;
867 bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
868 if(s->show_audio==1){
869 fill_rectangle(screen,
870 s->xleft, s->ytop, s->width, s->height,
873 fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
875 /* total height for one channel */
876 h = s->height / nb_display_channels;
877 /* graph height / 2 */
879 for(ch = 0;ch < nb_display_channels; ch++) {
881 y1 = s->ytop + ch * h + (h / 2); /* position of center line */
882 for(x = 0; x < s->width; x++) {
883 y = (s->sample_array[i] * h2) >> 15;
890 fill_rectangle(screen,
891 s->xleft + x, ys, 1, y,
894 if (i >= SAMPLE_ARRAY_SIZE)
895 i -= SAMPLE_ARRAY_SIZE;
899 fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
901 for(ch = 1;ch < nb_display_channels; ch++) {
902 y = s->ytop + ch * h;
903 fill_rectangle(screen,
904 s->xleft, y, s->width, 1,
907 SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
909 nb_display_channels= FFMIN(nb_display_channels, 2);
910 if(rdft_bits != s->rdft_bits){
911 av_rdft_end(s->rdft);
912 av_free(s->rdft_data);
913 s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
914 s->rdft_bits= rdft_bits;
915 s->rdft_data= av_malloc(4*nb_freq*sizeof(*s->rdft_data));
919 for(ch = 0;ch < nb_display_channels; ch++) {
920 data[ch] = s->rdft_data + 2*nb_freq*ch;
922 for(x = 0; x < 2*nb_freq; x++) {
923 double w= (x-nb_freq)*(1.0/nb_freq);
924 data[ch][x]= s->sample_array[i]*(1.0-w*w);
926 if (i >= SAMPLE_ARRAY_SIZE)
927 i -= SAMPLE_ARRAY_SIZE;
929 av_rdft_calc(s->rdft, data[ch]);
931 //least efficient way to do this, we should of course directly access it but its more than fast enough
932 for(y=0; y<s->height; y++){
933 double w= 1/sqrt(nb_freq);
934 int a= sqrt(w*sqrt(data[0][2*y+0]*data[0][2*y+0] + data[0][2*y+1]*data[0][2*y+1]));
935 int b= (nb_display_channels == 2 ) ? sqrt(w*sqrt(data[1][2*y+0]*data[1][2*y+0]
936 + data[1][2*y+1]*data[1][2*y+1])) : a;
939 fgcolor = SDL_MapRGB(screen->format, a, b, (a+b)/2);
941 fill_rectangle(screen,
942 s->xpos, s->height-y, 1, 1,
946 SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height);
948 if(s->xpos >= s->width)
953 static int video_open(VideoState *is){
954 int flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
957 if(is_full_screen) flags |= SDL_FULLSCREEN;
958 else flags |= SDL_RESIZABLE;
960 if (is_full_screen && fs_screen_width) {
962 h = fs_screen_height;
963 } else if(!is_full_screen && screen_width){
967 }else if (is->out_video_filter && is->out_video_filter->inputs[0]){
968 w = is->out_video_filter->inputs[0]->w;
969 h = is->out_video_filter->inputs[0]->h;
971 }else if (is->video_st && is->video_st->codec->width){
972 w = is->video_st->codec->width;
973 h = is->video_st->codec->height;
979 if(screen && is->width == screen->w && screen->w == w
980 && is->height== screen->h && screen->h == h)
984 screen = SDL_SetVideoMode(w, h, 0, flags);
986 /* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
987 screen = SDL_SetVideoMode(w, h, 24, flags);
990 fprintf(stderr, "SDL: could not set video mode - exiting\n");
994 window_title = input_filename;
995 SDL_WM_SetCaption(window_title, window_title);
997 is->width = screen->w;
998 is->height = screen->h;
1003 /* display the current picture, if any */
1004 static void video_display(VideoState *is)
1007 video_open(cur_stream);
1008 if (is->audio_st && is->show_audio)
1009 video_audio_display(is);
1010 else if (is->video_st)
1011 video_image_display(is);
1014 static int refresh_thread(void *opaque)
1016 VideoState *is= opaque;
1017 while(!is->abort_request){
1019 event.type = FF_REFRESH_EVENT;
1020 event.user.data1 = opaque;
1023 SDL_PushEvent(&event);
1025 usleep(is->audio_st && is->show_audio ? rdftspeed*1000 : 5000); //FIXME ideally we should wait the correct time but SDLs event passing is so slow it would be silly
1030 /* get the current audio clock value */
1031 static double get_audio_clock(VideoState *is)
1034 int hw_buf_size, bytes_per_sec;
1035 pts = is->audio_clock;
1036 hw_buf_size = audio_write_get_buf_size(is);
1039 bytes_per_sec = is->audio_st->codec->sample_rate *
1040 2 * is->audio_st->codec->channels;
1043 pts -= (double)hw_buf_size / bytes_per_sec;
1047 /* get the current video clock value */
1048 static double get_video_clock(VideoState *is)
1051 return is->video_current_pts;
1053 return is->video_current_pts_drift + av_gettime() / 1000000.0;
1057 /* get the current external clock value */
1058 static double get_external_clock(VideoState *is)
1062 return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
1065 /* get the current master clock value */
1066 static double get_master_clock(VideoState *is)
1070 if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
1072 val = get_video_clock(is);
1074 val = get_audio_clock(is);
1075 } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
1077 val = get_audio_clock(is);
1079 val = get_video_clock(is);
1081 val = get_external_clock(is);
1086 /* seek in the stream */
1087 static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
1089 if (!is->seek_req) {
1092 is->seek_flags &= ~AVSEEK_FLAG_BYTE;
1094 is->seek_flags |= AVSEEK_FLAG_BYTE;
1099 /* pause or resume the video */
1100 static void stream_pause(VideoState *is)
1103 is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts;
1104 if(is->read_pause_return != AVERROR(ENOSYS)){
1105 is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0;
1107 is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0;
1109 is->paused = !is->paused;
1112 static double compute_target_time(double frame_current_pts, VideoState *is)
1114 double delay, sync_threshold, diff;
1116 /* compute nominal delay */
1117 delay = frame_current_pts - is->frame_last_pts;
1118 if (delay <= 0 || delay >= 10.0) {
1119 /* if incorrect delay, use previous one */
1120 delay = is->frame_last_delay;
1122 is->frame_last_delay = delay;
1124 is->frame_last_pts = frame_current_pts;
1126 /* update delay to follow master synchronisation source */
1127 if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
1128 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
1129 /* if video is slave, we try to correct big delays by
1130 duplicating or deleting a frame */
1131 diff = get_video_clock(is) - get_master_clock(is);
1133 /* skip or repeat frame. We take into account the
1134 delay to compute the threshold. I still don't know
1135 if it is the best guess */
1136 sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay);
1137 if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
1138 if (diff <= -sync_threshold)
1140 else if (diff >= sync_threshold)
1144 is->frame_timer += delay;
1145 #if defined(DEBUG_SYNC)
1146 printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
1147 delay, actual_delay, frame_current_pts, -diff);
1150 return is->frame_timer;
1153 /* called to display each frame */
1154 static void video_refresh_timer(void *opaque)
1156 VideoState *is = opaque;
1159 SubPicture *sp, *sp2;
1163 if (is->pictq_size == 0) {
1164 //nothing to do, no picture to display in the que
1166 double time= av_gettime()/1000000.0;
1168 /* dequeue the picture */
1169 vp = &is->pictq[is->pictq_rindex];
1171 if(time < vp->target_clock)
1173 /* update current video pts */
1174 is->video_current_pts = vp->pts;
1175 is->video_current_pts_drift = is->video_current_pts - time;
1176 is->video_current_pos = vp->pos;
1177 if(is->pictq_size > 1){
1178 VideoPicture *nextvp= &is->pictq[(is->pictq_rindex+1)%VIDEO_PICTURE_QUEUE_SIZE];
1179 assert(nextvp->target_clock >= vp->target_clock);
1180 next_target= nextvp->target_clock;
1182 next_target= vp->target_clock + is->video_clock - vp->pts; //FIXME pass durations cleanly
1184 if(framedrop && time > next_target){
1185 is->skip_frames *= 1.0 + FRAME_SKIP_FACTOR;
1186 if(is->pictq_size > 1 || time > next_target + 0.5){
1187 /* update queue size and signal for next picture */
1188 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1189 is->pictq_rindex = 0;
1191 SDL_LockMutex(is->pictq_mutex);
1193 SDL_CondSignal(is->pictq_cond);
1194 SDL_UnlockMutex(is->pictq_mutex);
1199 if(is->subtitle_st) {
1200 if (is->subtitle_stream_changed) {
1201 SDL_LockMutex(is->subpq_mutex);
1203 while (is->subpq_size) {
1204 free_subpicture(&is->subpq[is->subpq_rindex]);
1206 /* update queue size and signal for next picture */
1207 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1208 is->subpq_rindex = 0;
1212 is->subtitle_stream_changed = 0;
1214 SDL_CondSignal(is->subpq_cond);
1215 SDL_UnlockMutex(is->subpq_mutex);
1217 if (is->subpq_size > 0) {
1218 sp = &is->subpq[is->subpq_rindex];
1220 if (is->subpq_size > 1)
1221 sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
1225 if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
1226 || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
1228 free_subpicture(sp);
1230 /* update queue size and signal for next picture */
1231 if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
1232 is->subpq_rindex = 0;
1234 SDL_LockMutex(is->subpq_mutex);
1236 SDL_CondSignal(is->subpq_cond);
1237 SDL_UnlockMutex(is->subpq_mutex);
1243 /* display picture */
1244 if (!display_disable)
1247 /* update queue size and signal for next picture */
1248 if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
1249 is->pictq_rindex = 0;
1251 SDL_LockMutex(is->pictq_mutex);
1253 SDL_CondSignal(is->pictq_cond);
1254 SDL_UnlockMutex(is->pictq_mutex);
1256 } else if (is->audio_st) {
1257 /* draw the next audio frame */
1259 /* if only audio stream, then display the audio bars (better
1260 than nothing, just to test the implementation */
1262 /* display picture */
1263 if (!display_disable)
1267 static int64_t last_time;
1269 int aqsize, vqsize, sqsize;
1272 cur_time = av_gettime();
1273 if (!last_time || (cur_time - last_time) >= 30000) {
1278 aqsize = is->audioq.size;
1280 vqsize = is->videoq.size;
1281 if (is->subtitle_st)
1282 sqsize = is->subtitleq.size;
1284 if (is->audio_st && is->video_st)
1285 av_diff = get_audio_clock(is) - get_video_clock(is);
1286 printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
1287 get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->video_st->codec->pts_correction_num_faulty_dts, is->video_st->codec->pts_correction_num_faulty_pts);
1289 last_time = cur_time;
1294 static void stream_close(VideoState *is)
1298 /* XXX: use a special url_shutdown call to abort parse cleanly */
1299 is->abort_request = 1;
1300 SDL_WaitThread(is->parse_tid, NULL);
1301 SDL_WaitThread(is->refresh_tid, NULL);
1303 /* free all pictures */
1304 for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
1308 avfilter_unref_buffer(vp->picref);
1313 SDL_FreeYUVOverlay(vp->bmp);
1317 SDL_DestroyMutex(is->pictq_mutex);
1318 SDL_DestroyCond(is->pictq_cond);
1319 SDL_DestroyMutex(is->subpq_mutex);
1320 SDL_DestroyCond(is->subpq_cond);
1321 #if !CONFIG_AVFILTER
1322 if (is->img_convert_ctx)
1323 sws_freeContext(is->img_convert_ctx);
1328 static void do_exit(void)
1331 stream_close(cur_stream);
1341 av_log(NULL, AV_LOG_QUIET, "");
1345 /* allocate a picture (needs to do that in main thread to avoid
1346 potential locking problems */
1347 static void alloc_picture(void *opaque)
1349 VideoState *is = opaque;
1352 vp = &is->pictq[is->pictq_windex];
1355 SDL_FreeYUVOverlay(vp->bmp);
1359 avfilter_unref_buffer(vp->picref);
1362 vp->width = is->out_video_filter->inputs[0]->w;
1363 vp->height = is->out_video_filter->inputs[0]->h;
1364 vp->pix_fmt = is->out_video_filter->inputs[0]->format;
1366 vp->width = is->video_st->codec->width;
1367 vp->height = is->video_st->codec->height;
1368 vp->pix_fmt = is->video_st->codec->pix_fmt;
1371 vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
1374 if (!vp->bmp || vp->bmp->pitches[0] < vp->width) {
1375 /* SDL allocates a buffer smaller than requested if the video
1376 * overlay hardware is unable to support the requested size. */
1377 fprintf(stderr, "Error: the video system does not support an image\n"
1378 "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n"
1379 "to reduce the image size.\n", vp->width, vp->height );
1383 SDL_LockMutex(is->pictq_mutex);
1385 SDL_CondSignal(is->pictq_cond);
1386 SDL_UnlockMutex(is->pictq_mutex);
1391 * @param pts the dts of the pkt / pts of the frame and guessed if not known
1393 static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos)
1400 /* wait until we have space to put a new picture */
1401 SDL_LockMutex(is->pictq_mutex);
1403 if(is->pictq_size>=VIDEO_PICTURE_QUEUE_SIZE && !is->refresh)
1404 is->skip_frames= FFMAX(1.0 - FRAME_SKIP_FACTOR, is->skip_frames * (1.0-FRAME_SKIP_FACTOR));
1406 while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
1407 !is->videoq.abort_request) {
1408 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1410 SDL_UnlockMutex(is->pictq_mutex);
1412 if (is->videoq.abort_request)
1415 vp = &is->pictq[is->pictq_windex];
1417 /* alloc or resize hardware picture buffer */
1420 vp->width != is->out_video_filter->inputs[0]->w ||
1421 vp->height != is->out_video_filter->inputs[0]->h) {
1423 vp->width != is->video_st->codec->width ||
1424 vp->height != is->video_st->codec->height) {
1430 /* the allocation must be done in the main thread to avoid
1432 event.type = FF_ALLOC_EVENT;
1433 event.user.data1 = is;
1434 SDL_PushEvent(&event);
1436 /* wait until the picture is allocated */
1437 SDL_LockMutex(is->pictq_mutex);
1438 while (!vp->allocated && !is->videoq.abort_request) {
1439 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1441 SDL_UnlockMutex(is->pictq_mutex);
1443 if (is->videoq.abort_request)
1447 /* if the frame is not skipped, then display it */
1452 avfilter_unref_buffer(vp->picref);
1453 vp->picref = src_frame->opaque;
1456 /* get a pointer on the bitmap */
1457 SDL_LockYUVOverlay (vp->bmp);
1459 dst_pix_fmt = PIX_FMT_YUV420P;
1460 memset(&pict,0,sizeof(AVPicture));
1461 pict.data[0] = vp->bmp->pixels[0];
1462 pict.data[1] = vp->bmp->pixels[2];
1463 pict.data[2] = vp->bmp->pixels[1];
1465 pict.linesize[0] = vp->bmp->pitches[0];
1466 pict.linesize[1] = vp->bmp->pitches[2];
1467 pict.linesize[2] = vp->bmp->pitches[1];
1470 pict_src.data[0] = src_frame->data[0];
1471 pict_src.data[1] = src_frame->data[1];
1472 pict_src.data[2] = src_frame->data[2];
1474 pict_src.linesize[0] = src_frame->linesize[0];
1475 pict_src.linesize[1] = src_frame->linesize[1];
1476 pict_src.linesize[2] = src_frame->linesize[2];
1478 //FIXME use direct rendering
1479 av_picture_copy(&pict, &pict_src,
1480 vp->pix_fmt, vp->width, vp->height);
1482 sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
1483 is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
1484 vp->width, vp->height, vp->pix_fmt, vp->width, vp->height,
1485 dst_pix_fmt, sws_flags, NULL, NULL, NULL);
1486 if (is->img_convert_ctx == NULL) {
1487 fprintf(stderr, "Cannot initialize the conversion context\n");
1490 sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
1491 0, vp->height, pict.data, pict.linesize);
1493 /* update the bitmap content */
1494 SDL_UnlockYUVOverlay(vp->bmp);
1499 /* now we can update the picture count */
1500 if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
1501 is->pictq_windex = 0;
1502 SDL_LockMutex(is->pictq_mutex);
1503 vp->target_clock= compute_target_time(vp->pts, is);
1506 SDL_UnlockMutex(is->pictq_mutex);
1512 * compute the exact PTS for the picture if it is omitted in the stream
1513 * @param pts1 the dts of the pkt / pts of the frame
1515 static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos)
1517 double frame_delay, pts;
1522 /* update video clock with pts, if present */
1523 is->video_clock = pts;
1525 pts = is->video_clock;
1527 /* update video clock for next frame */
1528 frame_delay = av_q2d(is->video_st->codec->time_base);
1529 /* for MPEG2, the frame can be repeated, so we update the
1530 clock accordingly */
1531 frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
1532 is->video_clock += frame_delay;
1534 #if defined(DEBUG_SYNC) && 0
1535 printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
1536 av_get_pict_type_char(src_frame->pict_type), pts, pts1);
1538 return queue_picture(is, src_frame, pts, pos);
1541 static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt)
1543 int len1, got_picture, i;
1545 if (packet_queue_get(&is->videoq, pkt, 1) < 0)
1548 if (pkt->data == flush_pkt.data) {
1549 avcodec_flush_buffers(is->video_st->codec);
1551 SDL_LockMutex(is->pictq_mutex);
1552 //Make sure there are no long delay timers (ideally we should just flush the que but thats harder)
1553 for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) {
1554 is->pictq[i].target_clock= 0;
1556 while (is->pictq_size && !is->videoq.abort_request) {
1557 SDL_CondWait(is->pictq_cond, is->pictq_mutex);
1559 is->video_current_pos = -1;
1560 SDL_UnlockMutex(is->pictq_mutex);
1562 is->frame_last_pts = AV_NOPTS_VALUE;
1563 is->frame_last_delay = 0;
1564 is->frame_timer = (double)av_gettime() / 1000000.0;
1565 is->skip_frames = 1;
1566 is->skip_frames_index = 0;
1570 len1 = avcodec_decode_video2(is->video_st->codec,
1571 frame, &got_picture,
1575 if (decoder_reorder_pts == -1) {
1576 *pts = frame->best_effort_timestamp;
1577 } else if (decoder_reorder_pts) {
1578 *pts = frame->pkt_pts;
1580 *pts = frame->pkt_dts;
1583 if (*pts == AV_NOPTS_VALUE) {
1587 is->skip_frames_index += 1;
1588 if(is->skip_frames_index >= is->skip_frames){
1589 is->skip_frames_index -= FFMAX(is->skip_frames, 1.0);
1604 static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
1606 AVFilterContext *ctx = codec->opaque;
1607 AVFilterBufferRef *ref;
1608 int perms = AV_PERM_WRITE;
1609 int i, w, h, stride[4];
1612 if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
1613 perms |= AV_PERM_NEG_LINESIZES;
1615 if(pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
1616 if(pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
1617 if(pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
1618 if(pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
1620 if(pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
1624 avcodec_align_dimensions2(codec, &w, &h, stride);
1625 edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
1629 if(!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
1632 ref->video->w = codec->width;
1633 ref->video->h = codec->height;
1634 for(i = 0; i < 4; i ++) {
1635 unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
1636 unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
1639 ref->data[i] += (edge >> hshift) + ((edge * ref->linesize[i]) >> vshift);
1641 pic->data[i] = ref->data[i];
1642 pic->linesize[i] = ref->linesize[i];
1646 pic->type = FF_BUFFER_TYPE_USER;
1647 pic->reordered_opaque = codec->reordered_opaque;
1648 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1649 else pic->pkt_pts = AV_NOPTS_VALUE;
1653 static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
1655 memset(pic->data, 0, sizeof(pic->data));
1656 avfilter_unref_buffer(pic->opaque);
1659 static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
1661 AVFilterBufferRef *ref = pic->opaque;
1663 if (pic->data[0] == NULL) {
1664 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
1665 return codec->get_buffer(codec, pic);
1668 if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
1669 (codec->pix_fmt != ref->format)) {
1670 av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
1674 pic->reordered_opaque = codec->reordered_opaque;
1675 if(codec->pkt) pic->pkt_pts = codec->pkt->pts;
1676 else pic->pkt_pts = AV_NOPTS_VALUE;
1680 static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
1682 FilterPriv *priv = ctx->priv;
1683 AVCodecContext *codec;
1684 if(!opaque) return -1;
1687 codec = priv->is->video_st->codec;
1688 codec->opaque = ctx;
1689 if(codec->codec->capabilities & CODEC_CAP_DR1) {
1691 codec->get_buffer = input_get_buffer;
1692 codec->release_buffer = input_release_buffer;
1693 codec->reget_buffer = input_reget_buffer;
1696 priv->frame = avcodec_alloc_frame();
1701 static void input_uninit(AVFilterContext *ctx)
1703 FilterPriv *priv = ctx->priv;
1704 av_free(priv->frame);
1707 static int input_request_frame(AVFilterLink *link)
1709 FilterPriv *priv = link->src->priv;
1710 AVFilterBufferRef *picref;
1715 while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
1716 av_free_packet(&pkt);
1721 picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
1723 picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, link->w, link->h);
1724 av_image_copy(picref->data, picref->linesize,
1725 priv->frame->data, priv->frame->linesize,
1726 picref->format, link->w, link->h);
1728 av_free_packet(&pkt);
1731 picref->pos = pkt.pos;
1732 picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio;
1733 avfilter_start_frame(link, picref);
1734 avfilter_draw_slice(link, 0, link->h, 1);
1735 avfilter_end_frame(link);
1740 static int input_query_formats(AVFilterContext *ctx)
1742 FilterPriv *priv = ctx->priv;
1743 enum PixelFormat pix_fmts[] = {
1744 priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
1747 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1751 static int input_config_props(AVFilterLink *link)
1753 FilterPriv *priv = link->src->priv;
1754 AVCodecContext *c = priv->is->video_st->codec;
1757 link->h = c->height;
1758 link->time_base = priv->is->video_st->time_base;
1763 static AVFilter input_filter =
1765 .name = "ffplay_input",
1767 .priv_size = sizeof(FilterPriv),
1770 .uninit = input_uninit,
1772 .query_formats = input_query_formats,
1774 .inputs = (AVFilterPad[]) {{ .name = NULL }},
1775 .outputs = (AVFilterPad[]) {{ .name = "default",
1776 .type = AVMEDIA_TYPE_VIDEO,
1777 .request_frame = input_request_frame,
1778 .config_props = input_config_props, },
1782 static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
1784 char sws_flags_str[128];
1786 FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
1787 AVFilterContext *filt_src = NULL, *filt_out = NULL;
1788 snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
1789 graph->scale_sws_opts = av_strdup(sws_flags_str);
1791 if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
1792 NULL, is, graph)) < 0)
1794 if ((ret = avfilter_graph_create_filter(&filt_out, &ffsink, "out",
1795 NULL, &ffsink_ctx, graph)) < 0)
1799 AVFilterInOut *outputs = av_malloc(sizeof(AVFilterInOut));
1800 AVFilterInOut *inputs = av_malloc(sizeof(AVFilterInOut));
1802 outputs->name = av_strdup("in");
1803 outputs->filter_ctx = filt_src;
1804 outputs->pad_idx = 0;
1805 outputs->next = NULL;
1807 inputs->name = av_strdup("out");
1808 inputs->filter_ctx = filt_out;
1809 inputs->pad_idx = 0;
1810 inputs->next = NULL;
1812 if ((ret = avfilter_graph_parse(graph, vfilters, inputs, outputs, NULL)) < 0)
1814 av_freep(&vfilters);
1816 if ((ret = avfilter_link(filt_src, 0, filt_out, 0)) < 0)
1820 if ((ret = avfilter_graph_config(graph, NULL)) < 0)
1823 is->out_video_filter = filt_out;
1828 #endif /* CONFIG_AVFILTER */
1830 static int video_thread(void *arg)
1832 VideoState *is = arg;
1833 AVFrame *frame= avcodec_alloc_frame();
1839 AVFilterGraph *graph = avfilter_graph_alloc();
1840 AVFilterContext *filt_out = NULL;
1843 if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
1845 filt_out = is->out_video_filter;
1849 #if !CONFIG_AVFILTER
1852 AVFilterBufferRef *picref;
1855 while (is->paused && !is->videoq.abort_request)
1858 ret = get_filtered_video_frame(filt_out, frame, &picref, &tb);
1860 pts_int = picref->pts;
1862 frame->opaque = picref;
1865 if (av_cmp_q(tb, is->video_st->time_base)) {
1866 av_unused int64_t pts1 = pts_int;
1867 pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
1868 av_dlog(NULL, "video_thread(): "
1869 "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
1870 tb.num, tb.den, pts1,
1871 is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
1874 ret = get_video_frame(is, frame, &pts_int, &pkt);
1877 if (ret < 0) goto the_end;
1882 pts = pts_int*av_q2d(is->video_st->time_base);
1885 ret = output_picture2(is, frame, pts, pos);
1887 ret = output_picture2(is, frame, pts, pkt.pos);
1888 av_free_packet(&pkt);
1895 stream_pause(cur_stream);
1899 avfilter_graph_free(&graph);
1905 static int subtitle_thread(void *arg)
1907 VideoState *is = arg;
1909 AVPacket pkt1, *pkt = &pkt1;
1910 int len1, got_subtitle;
1913 int r, g, b, y, u, v, a;
1916 while (is->paused && !is->subtitleq.abort_request) {
1919 if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
1922 if(pkt->data == flush_pkt.data){
1923 avcodec_flush_buffers(is->subtitle_st->codec);
1926 SDL_LockMutex(is->subpq_mutex);
1927 while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
1928 !is->subtitleq.abort_request) {
1929 SDL_CondWait(is->subpq_cond, is->subpq_mutex);
1931 SDL_UnlockMutex(is->subpq_mutex);
1933 if (is->subtitleq.abort_request)
1936 sp = &is->subpq[is->subpq_windex];
1938 /* NOTE: ipts is the PTS of the _first_ picture beginning in
1939 this packet, if any */
1941 if (pkt->pts != AV_NOPTS_VALUE)
1942 pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
1944 len1 = avcodec_decode_subtitle2(is->subtitle_st->codec,
1945 &sp->sub, &got_subtitle,
1949 if (got_subtitle && sp->sub.format == 0) {
1952 for (i = 0; i < sp->sub.num_rects; i++)
1954 for (j = 0; j < sp->sub.rects[i]->nb_colors; j++)
1956 RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j);
1957 y = RGB_TO_Y_CCIR(r, g, b);
1958 u = RGB_TO_U_CCIR(r, g, b, 0);
1959 v = RGB_TO_V_CCIR(r, g, b, 0);
1960 YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a);
1964 /* now we can update the picture count */
1965 if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
1966 is->subpq_windex = 0;
1967 SDL_LockMutex(is->subpq_mutex);
1969 SDL_UnlockMutex(is->subpq_mutex);
1971 av_free_packet(pkt);
1974 // stream_pause(cur_stream);
1980 /* copy samples for viewing in editor window */
1981 static void update_sample_display(VideoState *is, short *samples, int samples_size)
1983 int size, len, channels;
1985 channels = is->audio_st->codec->channels;
1987 size = samples_size / sizeof(short);
1989 len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
1992 memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
1994 is->sample_array_index += len;
1995 if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
1996 is->sample_array_index = 0;
2001 /* return the new audio buffer size (samples can be added or deleted
2002 to get better sync if video or external master clock) */
2003 static int synchronize_audio(VideoState *is, short *samples,
2004 int samples_size1, double pts)
2006 int n, samples_size;
2009 n = 2 * is->audio_st->codec->channels;
2010 samples_size = samples_size1;
2012 /* if not master, then we try to remove or add samples to correct the clock */
2013 if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
2014 is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
2015 double diff, avg_diff;
2016 int wanted_size, min_size, max_size, nb_samples;
2018 ref_clock = get_master_clock(is);
2019 diff = get_audio_clock(is) - ref_clock;
2021 if (diff < AV_NOSYNC_THRESHOLD) {
2022 is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
2023 if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
2024 /* not enough measures to have a correct estimate */
2025 is->audio_diff_avg_count++;
2027 /* estimate the A-V difference */
2028 avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
2030 if (fabs(avg_diff) >= is->audio_diff_threshold) {
2031 wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
2032 nb_samples = samples_size / n;
2034 min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2035 max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
2036 if (wanted_size < min_size)
2037 wanted_size = min_size;
2038 else if (wanted_size > max_size)
2039 wanted_size = max_size;
2041 /* add or remove samples to correction the synchro */
2042 if (wanted_size < samples_size) {
2043 /* remove samples */
2044 samples_size = wanted_size;
2045 } else if (wanted_size > samples_size) {
2046 uint8_t *samples_end, *q;
2050 nb = (samples_size - wanted_size);
2051 samples_end = (uint8_t *)samples + samples_size - n;
2052 q = samples_end + n;
2054 memcpy(q, samples_end, n);
2058 samples_size = wanted_size;
2062 printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
2063 diff, avg_diff, samples_size - samples_size1,
2064 is->audio_clock, is->video_clock, is->audio_diff_threshold);
2068 /* too big difference : may be initial PTS errors, so
2070 is->audio_diff_avg_count = 0;
2071 is->audio_diff_cum = 0;
2075 return samples_size;
2078 /* decode one audio frame and returns its uncompressed size */
2079 static int audio_decode_frame(VideoState *is, double *pts_ptr)
2081 AVPacket *pkt_temp = &is->audio_pkt_temp;
2082 AVPacket *pkt = &is->audio_pkt;
2083 AVCodecContext *dec= is->audio_st->codec;
2084 int n, len1, data_size;
2088 /* NOTE: the audio packet can contain several frames */
2089 while (pkt_temp->size > 0) {
2090 data_size = sizeof(is->audio_buf1);
2091 len1 = avcodec_decode_audio3(dec,
2092 (int16_t *)is->audio_buf1, &data_size,
2095 /* if error, we skip the frame */
2100 pkt_temp->data += len1;
2101 pkt_temp->size -= len1;
2105 if (dec->sample_fmt != is->audio_src_fmt) {
2106 if (is->reformat_ctx)
2107 av_audio_convert_free(is->reformat_ctx);
2108 is->reformat_ctx= av_audio_convert_alloc(AV_SAMPLE_FMT_S16, 1,
2109 dec->sample_fmt, 1, NULL, 0);
2110 if (!is->reformat_ctx) {
2111 fprintf(stderr, "Cannot convert %s sample format to %s sample format\n",
2112 av_get_sample_fmt_name(dec->sample_fmt),
2113 av_get_sample_fmt_name(AV_SAMPLE_FMT_S16));
2116 is->audio_src_fmt= dec->sample_fmt;
2119 if (is->reformat_ctx) {
2120 const void *ibuf[6]= {is->audio_buf1};
2121 void *obuf[6]= {is->audio_buf2};
2122 int istride[6]= {av_get_bits_per_sample_fmt(dec->sample_fmt)/8};
2123 int ostride[6]= {2};
2124 int len= data_size/istride[0];
2125 if (av_audio_convert(is->reformat_ctx, obuf, ostride, ibuf, istride, len)<0) {
2126 printf("av_audio_convert() failed\n");
2129 is->audio_buf= is->audio_buf2;
2130 /* FIXME: existing code assume that data_size equals framesize*channels*2
2131 remove this legacy cruft */
2134 is->audio_buf= is->audio_buf1;
2137 /* if no pts, then compute it */
2138 pts = is->audio_clock;
2140 n = 2 * dec->channels;
2141 is->audio_clock += (double)data_size /
2142 (double)(n * dec->sample_rate);
2143 #if defined(DEBUG_SYNC)
2145 static double last_clock;
2146 printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
2147 is->audio_clock - last_clock,
2148 is->audio_clock, pts);
2149 last_clock = is->audio_clock;
2155 /* free the current packet */
2157 av_free_packet(pkt);
2159 if (is->paused || is->audioq.abort_request) {
2163 /* read next packet */
2164 if (packet_queue_get(&is->audioq, pkt, 1) < 0)
2166 if(pkt->data == flush_pkt.data){
2167 avcodec_flush_buffers(dec);
2171 pkt_temp->data = pkt->data;
2172 pkt_temp->size = pkt->size;
2174 /* if update the audio clock with the pts */
2175 if (pkt->pts != AV_NOPTS_VALUE) {
2176 is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
2181 /* get the current audio output buffer size, in samples. With SDL, we
2182 cannot have a precise information */
2183 static int audio_write_get_buf_size(VideoState *is)
2185 return is->audio_buf_size - is->audio_buf_index;
2189 /* prepare a new audio buffer */
2190 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
2192 VideoState *is = opaque;
2193 int audio_size, len1;
2196 audio_callback_time = av_gettime();
2199 if (is->audio_buf_index >= is->audio_buf_size) {
2200 audio_size = audio_decode_frame(is, &pts);
2201 if (audio_size < 0) {
2202 /* if error, just output silence */
2203 is->audio_buf = is->audio_buf1;
2204 is->audio_buf_size = 1024;
2205 memset(is->audio_buf, 0, is->audio_buf_size);
2208 update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
2209 audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
2211 is->audio_buf_size = audio_size;
2213 is->audio_buf_index = 0;
2215 len1 = is->audio_buf_size - is->audio_buf_index;
2218 memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
2221 is->audio_buf_index += len1;
2225 /* open a given stream. Return 0 if OK */
2226 static int stream_component_open(VideoState *is, int stream_index)
2228 AVFormatContext *ic = is->ic;
2229 AVCodecContext *avctx;
2231 SDL_AudioSpec wanted_spec, spec;
2233 if (stream_index < 0 || stream_index >= ic->nb_streams)
2235 avctx = ic->streams[stream_index]->codec;
2237 /* prepare audio output */
2238 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2239 if (avctx->channels > 0) {
2240 avctx->request_channels = FFMIN(2, avctx->channels);
2242 avctx->request_channels = 2;
2246 codec = avcodec_find_decoder(avctx->codec_id);
2247 avctx->debug_mv = debug_mv;
2248 avctx->debug = debug;
2249 avctx->workaround_bugs = workaround_bugs;
2250 avctx->lowres = lowres;
2251 if(lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
2252 avctx->idct_algo= idct;
2253 if(fast) avctx->flags2 |= CODEC_FLAG2_FAST;
2254 avctx->skip_frame= skip_frame;
2255 avctx->skip_idct= skip_idct;
2256 avctx->skip_loop_filter= skip_loop_filter;
2257 avctx->error_recognition= error_recognition;
2258 avctx->error_concealment= error_concealment;
2259 avcodec_thread_init(avctx, thread_count);
2261 set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
2264 avcodec_open(avctx, codec) < 0)
2267 /* prepare audio output */
2268 if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
2269 wanted_spec.freq = avctx->sample_rate;
2270 wanted_spec.format = AUDIO_S16SYS;
2271 wanted_spec.channels = avctx->channels;
2272 wanted_spec.silence = 0;
2273 wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
2274 wanted_spec.callback = sdl_audio_callback;
2275 wanted_spec.userdata = is;
2276 if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
2277 fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
2280 is->audio_hw_buf_size = spec.size;
2281 is->audio_src_fmt= AV_SAMPLE_FMT_S16;
2284 ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
2285 switch(avctx->codec_type) {
2286 case AVMEDIA_TYPE_AUDIO:
2287 is->audio_stream = stream_index;
2288 is->audio_st = ic->streams[stream_index];
2289 is->audio_buf_size = 0;
2290 is->audio_buf_index = 0;
2292 /* init averaging filter */
2293 is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
2294 is->audio_diff_avg_count = 0;
2295 /* since we do not have a precise anough audio fifo fullness,
2296 we correct audio sync only if larger than this threshold */
2297 is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
2299 memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
2300 packet_queue_init(&is->audioq);
2303 case AVMEDIA_TYPE_VIDEO:
2304 is->video_stream = stream_index;
2305 is->video_st = ic->streams[stream_index];
2307 // is->video_current_pts_time = av_gettime();
2309 packet_queue_init(&is->videoq);
2310 is->video_tid = SDL_CreateThread(video_thread, is);
2312 case AVMEDIA_TYPE_SUBTITLE:
2313 is->subtitle_stream = stream_index;
2314 is->subtitle_st = ic->streams[stream_index];
2315 packet_queue_init(&is->subtitleq);
2317 is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
2325 static void stream_component_close(VideoState *is, int stream_index)
2327 AVFormatContext *ic = is->ic;
2328 AVCodecContext *avctx;
2330 if (stream_index < 0 || stream_index >= ic->nb_streams)
2332 avctx = ic->streams[stream_index]->codec;
2334 switch(avctx->codec_type) {
2335 case AVMEDIA_TYPE_AUDIO:
2336 packet_queue_abort(&is->audioq);
2340 packet_queue_end(&is->audioq);
2341 if (is->reformat_ctx)
2342 av_audio_convert_free(is->reformat_ctx);
2343 is->reformat_ctx = NULL;
2345 case AVMEDIA_TYPE_VIDEO:
2346 packet_queue_abort(&is->videoq);
2348 /* note: we also signal this mutex to make sure we deblock the
2349 video thread in all cases */
2350 SDL_LockMutex(is->pictq_mutex);
2351 SDL_CondSignal(is->pictq_cond);
2352 SDL_UnlockMutex(is->pictq_mutex);
2354 SDL_WaitThread(is->video_tid, NULL);
2356 packet_queue_end(&is->videoq);
2358 case AVMEDIA_TYPE_SUBTITLE:
2359 packet_queue_abort(&is->subtitleq);
2361 /* note: we also signal this mutex to make sure we deblock the
2362 video thread in all cases */
2363 SDL_LockMutex(is->subpq_mutex);
2364 is->subtitle_stream_changed = 1;
2366 SDL_CondSignal(is->subpq_cond);
2367 SDL_UnlockMutex(is->subpq_mutex);
2369 SDL_WaitThread(is->subtitle_tid, NULL);
2371 packet_queue_end(&is->subtitleq);
2377 ic->streams[stream_index]->discard = AVDISCARD_ALL;
2378 avcodec_close(avctx);
2379 switch(avctx->codec_type) {
2380 case AVMEDIA_TYPE_AUDIO:
2381 is->audio_st = NULL;
2382 is->audio_stream = -1;
2384 case AVMEDIA_TYPE_VIDEO:
2385 is->video_st = NULL;
2386 is->video_stream = -1;
2388 case AVMEDIA_TYPE_SUBTITLE:
2389 is->subtitle_st = NULL;
2390 is->subtitle_stream = -1;
2397 /* since we have only one decoding thread, we can use a global
2398 variable instead of a thread local variable */
2399 static VideoState *global_video_state;
2401 static int decode_interrupt_cb(void)
2403 return (global_video_state && global_video_state->abort_request);
2406 /* this thread gets the stream from the disk or the network */
2407 static int decode_thread(void *arg)
2409 VideoState *is = arg;
2410 AVFormatContext *ic;
2412 int st_index[AVMEDIA_TYPE_NB];
2413 AVPacket pkt1, *pkt = &pkt1;
2414 AVFormatParameters params, *ap = ¶ms;
2416 int pkt_in_play_range = 0;
2418 ic = avformat_alloc_context();
2420 memset(st_index, -1, sizeof(st_index));
2421 is->video_stream = -1;
2422 is->audio_stream = -1;
2423 is->subtitle_stream = -1;
2425 global_video_state = is;
2426 url_set_interrupt_cb(decode_interrupt_cb);
2428 memset(ap, 0, sizeof(*ap));
2430 ap->prealloced_context = 1;
2431 ap->width = frame_width;
2432 ap->height= frame_height;
2433 ap->time_base= (AVRational){1, 25};
2434 ap->pix_fmt = frame_pix_fmt;
2436 set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
2438 err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
2440 print_error(is->filename, err);
2447 ic->flags |= AVFMT_FLAG_GENPTS;
2449 err = av_find_stream_info(ic);
2451 fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
2456 ic->pb->eof_reached= 0; //FIXME hack, ffplay maybe should not use url_feof() to test for the end
2459 seek_by_bytes= !!(ic->iformat->flags & AVFMT_TS_DISCONT);
2461 /* if seeking requested, we execute it */
2462 if (start_time != AV_NOPTS_VALUE) {
2465 timestamp = start_time;
2466 /* add the stream start time */
2467 if (ic->start_time != AV_NOPTS_VALUE)
2468 timestamp += ic->start_time;
2469 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
2471 fprintf(stderr, "%s: could not seek to position %0.3f\n",
2472 is->filename, (double)timestamp / AV_TIME_BASE);
2476 for (i = 0; i < ic->nb_streams; i++)
2477 ic->streams[i]->discard = AVDISCARD_ALL;
2479 st_index[AVMEDIA_TYPE_VIDEO] =
2480 av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
2481 wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
2483 st_index[AVMEDIA_TYPE_AUDIO] =
2484 av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
2485 wanted_stream[AVMEDIA_TYPE_AUDIO],
2486 st_index[AVMEDIA_TYPE_VIDEO],
2489 st_index[AVMEDIA_TYPE_SUBTITLE] =
2490 av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
2491 wanted_stream[AVMEDIA_TYPE_SUBTITLE],
2492 (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
2493 st_index[AVMEDIA_TYPE_AUDIO] :
2494 st_index[AVMEDIA_TYPE_VIDEO]),
2497 dump_format(ic, 0, is->filename, 0);
2500 /* open the streams */
2501 if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
2502 stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
2506 if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
2507 ret= stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
2509 is->refresh_tid = SDL_CreateThread(refresh_thread, is);
2511 if (!display_disable)
2515 if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
2516 stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
2519 if (is->video_stream < 0 && is->audio_stream < 0) {
2520 fprintf(stderr, "%s: could not open codecs\n", is->filename);
2526 if (is->abort_request)
2528 if (is->paused != is->last_paused) {
2529 is->last_paused = is->paused;
2531 is->read_pause_return= av_read_pause(ic);
2535 #if CONFIG_RTSP_DEMUXER
2536 if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
2537 /* wait 10 ms to avoid trying to get another packet */
2544 int64_t seek_target= is->seek_pos;
2545 int64_t seek_min= is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
2546 int64_t seek_max= is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
2547 //FIXME the +-2 is due to rounding being not done in the correct direction in generation
2548 // of the seek_pos/seek_rel variables
2550 ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
2552 fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
2554 if (is->audio_stream >= 0) {
2555 packet_queue_flush(&is->audioq);
2556 packet_queue_put(&is->audioq, &flush_pkt);
2558 if (is->subtitle_stream >= 0) {
2559 packet_queue_flush(&is->subtitleq);
2560 packet_queue_put(&is->subtitleq, &flush_pkt);
2562 if (is->video_stream >= 0) {
2563 packet_queue_flush(&is->videoq);
2564 packet_queue_put(&is->videoq, &flush_pkt);
2571 /* if the queue are full, no need to read more */
2572 if ( is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
2573 || ( (is->audioq .size > MIN_AUDIOQ_SIZE || is->audio_stream<0)
2574 && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream<0)
2575 && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream<0))) {
2581 if(is->video_stream >= 0){
2582 av_init_packet(pkt);
2585 pkt->stream_index= is->video_stream;
2586 packet_queue_put(&is->videoq, pkt);
2589 if(is->audioq.size + is->videoq.size + is->subtitleq.size ==0){
2590 if(loop!=1 && (!loop || --loop)){
2591 stream_seek(cur_stream, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
2599 ret = av_read_frame(ic, pkt);
2601 if (ret == AVERROR_EOF || url_feof(ic->pb))
2603 if (url_ferror(ic->pb))
2605 SDL_Delay(100); /* wait for user event */
2608 /* check if packet is in play range specified by user, then queue, otherwise discard */
2609 pkt_in_play_range = duration == AV_NOPTS_VALUE ||
2610 (pkt->pts - ic->streams[pkt->stream_index]->start_time) *
2611 av_q2d(ic->streams[pkt->stream_index]->time_base) -
2612 (double)(start_time != AV_NOPTS_VALUE ? start_time : 0)/1000000
2613 <= ((double)duration/1000000);
2614 if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
2615 packet_queue_put(&is->audioq, pkt);
2616 } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) {
2617 packet_queue_put(&is->videoq, pkt);
2618 } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
2619 packet_queue_put(&is->subtitleq, pkt);
2621 av_free_packet(pkt);
2624 /* wait until the end */
2625 while (!is->abort_request) {
2631 /* disable interrupting */
2632 global_video_state = NULL;
2634 /* close each stream */
2635 if (is->audio_stream >= 0)
2636 stream_component_close(is, is->audio_stream);
2637 if (is->video_stream >= 0)
2638 stream_component_close(is, is->video_stream);
2639 if (is->subtitle_stream >= 0)
2640 stream_component_close(is, is->subtitle_stream);
2642 av_close_input_file(is->ic);
2643 is->ic = NULL; /* safety */
2645 url_set_interrupt_cb(NULL);
2650 event.type = FF_QUIT_EVENT;
2651 event.user.data1 = is;
2652 SDL_PushEvent(&event);
2657 static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
2661 is = av_mallocz(sizeof(VideoState));
2664 av_strlcpy(is->filename, filename, sizeof(is->filename));
2665 is->iformat = iformat;
2669 /* start video display */
2670 is->pictq_mutex = SDL_CreateMutex();
2671 is->pictq_cond = SDL_CreateCond();
2673 is->subpq_mutex = SDL_CreateMutex();
2674 is->subpq_cond = SDL_CreateCond();
2676 is->av_sync_type = av_sync_type;
2677 is->parse_tid = SDL_CreateThread(decode_thread, is);
2678 if (!is->parse_tid) {
2685 static void stream_cycle_channel(VideoState *is, int codec_type)
2687 AVFormatContext *ic = is->ic;
2688 int start_index, stream_index;
2691 if (codec_type == AVMEDIA_TYPE_VIDEO)
2692 start_index = is->video_stream;
2693 else if (codec_type == AVMEDIA_TYPE_AUDIO)
2694 start_index = is->audio_stream;
2696 start_index = is->subtitle_stream;
2697 if (start_index < (codec_type == AVMEDIA_TYPE_SUBTITLE ? -1 : 0))
2699 stream_index = start_index;
2701 if (++stream_index >= is->ic->nb_streams)
2703 if (codec_type == AVMEDIA_TYPE_SUBTITLE)
2710 if (stream_index == start_index)
2712 st = ic->streams[stream_index];
2713 if (st->codec->codec_type == codec_type) {
2714 /* check that parameters are OK */
2715 switch(codec_type) {
2716 case AVMEDIA_TYPE_AUDIO:
2717 if (st->codec->sample_rate != 0 &&
2718 st->codec->channels != 0)
2721 case AVMEDIA_TYPE_VIDEO:
2722 case AVMEDIA_TYPE_SUBTITLE:
2730 stream_component_close(is, start_index);
2731 stream_component_open(is, stream_index);
2735 static void toggle_full_screen(void)
2737 is_full_screen = !is_full_screen;
2738 if (!fs_screen_width) {
2739 /* use default SDL method */
2740 // SDL_WM_ToggleFullScreen(screen);
2742 video_open(cur_stream);
2745 static void toggle_pause(void)
2748 stream_pause(cur_stream);
2752 static void step_to_next_frame(void)
2755 /* if the stream is paused unpause it, then step */
2756 if (cur_stream->paused)
2757 stream_pause(cur_stream);
2762 static void toggle_audio_display(void)
2765 int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
2766 cur_stream->show_audio = (cur_stream->show_audio + 1) % 3;
2767 fill_rectangle(screen,
2768 cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height,
2770 SDL_UpdateRect(screen, cur_stream->xleft, cur_stream->ytop, cur_stream->width, cur_stream->height);
2774 /* handle an event sent by the GUI */
2775 static void event_loop(void)
2778 double incr, pos, frac;
2782 SDL_WaitEvent(&event);
2783 switch(event.type) {
2785 if (exit_on_keydown) {
2789 switch(event.key.keysym.sym) {
2795 toggle_full_screen();
2801 case SDLK_s: //S: Step to next frame
2802 step_to_next_frame();
2806 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
2810 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
2814 stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
2817 toggle_audio_display();
2832 if (seek_by_bytes) {
2833 if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos>=0){
2834 pos= cur_stream->video_current_pos;
2835 }else if(cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos>=0){
2836 pos= cur_stream->audio_pkt.pos;
2838 pos = url_ftell(cur_stream->ic->pb);
2839 if (cur_stream->ic->bit_rate)
2840 incr *= cur_stream->ic->bit_rate / 8.0;
2844 stream_seek(cur_stream, pos, incr, 1);
2846 pos = get_master_clock(cur_stream);
2848 stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
2856 case SDL_MOUSEBUTTONDOWN:
2857 if (exit_on_mousedown) {
2861 case SDL_MOUSEMOTION:
2862 if(event.type ==SDL_MOUSEBUTTONDOWN){
2865 if(event.motion.state != SDL_PRESSED)
2870 if(seek_by_bytes || cur_stream->ic->duration<=0){
2871 uint64_t size= url_fsize(cur_stream->ic->pb);
2872 stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
2876 int tns, thh, tmm, tss;
2877 tns = cur_stream->ic->duration/1000000LL;
2879 tmm = (tns%3600)/60;
2881 frac = x/cur_stream->width;
2886 fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
2887 hh, mm, ss, thh, tmm, tss);
2888 ts = frac*cur_stream->ic->duration;
2889 if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
2890 ts += cur_stream->ic->start_time;
2891 stream_seek(cur_stream, ts, 0, 0);
2895 case SDL_VIDEORESIZE:
2897 screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
2898 SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
2899 screen_width = cur_stream->width = event.resize.w;
2900 screen_height= cur_stream->height= event.resize.h;
2907 case FF_ALLOC_EVENT:
2908 video_open(event.user.data1);
2909 alloc_picture(event.user.data1);
2911 case FF_REFRESH_EVENT:
2912 video_refresh_timer(event.user.data1);
2913 cur_stream->refresh=0;
2921 static void opt_frame_size(const char *arg)
2923 if (av_parse_video_size(&frame_width, &frame_height, arg) < 0) {
2924 fprintf(stderr, "Incorrect frame size\n");
2927 if ((frame_width % 2) != 0 || (frame_height % 2) != 0) {
2928 fprintf(stderr, "Frame size must be a multiple of 2\n");
2933 static int opt_width(const char *opt, const char *arg)
2935 screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2939 static int opt_height(const char *opt, const char *arg)
2941 screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
2945 static void opt_format(const char *arg)
2947 file_iformat = av_find_input_format(arg);
2948 if (!file_iformat) {
2949 fprintf(stderr, "Unknown input format: %s\n", arg);
2954 static void opt_frame_pix_fmt(const char *arg)
2956 frame_pix_fmt = av_get_pix_fmt(arg);
2959 static int opt_sync(const char *opt, const char *arg)
2961 if (!strcmp(arg, "audio"))
2962 av_sync_type = AV_SYNC_AUDIO_MASTER;
2963 else if (!strcmp(arg, "video"))
2964 av_sync_type = AV_SYNC_VIDEO_MASTER;
2965 else if (!strcmp(arg, "ext"))
2966 av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
2968 fprintf(stderr, "Unknown value for %s: %s\n", opt, arg);
2974 static int opt_seek(const char *opt, const char *arg)
2976 start_time = parse_time_or_die(opt, arg, 1);
2980 static int opt_duration(const char *opt, const char *arg)
2982 duration = parse_time_or_die(opt, arg, 1);
2986 static int opt_debug(const char *opt, const char *arg)
2988 av_log_set_level(99);
2989 debug = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
2993 static int opt_vismv(const char *opt, const char *arg)
2995 debug_mv = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
2999 static int opt_thread_count(const char *opt, const char *arg)
3001 thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
3003 fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
3008 static const OptionDef options[] = {
3009 #include "cmdutils_common_opts.h"
3010 { "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
3011 { "y", HAS_ARG | OPT_FUNC2, {(void*)opt_height}, "force displayed height", "height" },
3012 { "s", HAS_ARG | OPT_VIDEO, {(void*)opt_frame_size}, "set frame size (WxH or abbreviation)", "size" },
3013 { "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
3014 { "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
3015 { "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
3016 { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_AUDIO]}, "select desired audio stream", "stream_number" },
3017 { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_VIDEO]}, "select desired video stream", "stream_number" },
3018 { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&wanted_stream[AVMEDIA_TYPE_SUBTITLE]}, "select desired subtitle stream", "stream_number" },
3019 { "ss", HAS_ARG | OPT_FUNC2, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
3020 { "t", HAS_ARG | OPT_FUNC2, {(void*)&opt_duration}, "play \"duration\" seconds of audio/video", "duration" },
3021 { "bytes", OPT_INT | HAS_ARG, {(void*)&seek_by_bytes}, "seek by bytes 0=off 1=on -1=auto", "val" },
3022 { "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
3023 { "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
3024 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_frame_pix_fmt}, "set pixel format", "format" },
3025 { "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
3026 { "debug", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
3027 { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
3028 { "vismv", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
3029 { "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
3030 { "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
3031 { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&decoder_reorder_pts}, "let decoder reorder pts 0=off 1=on -1=auto", ""},
3032 { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
3033 { "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
3034 { "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
3035 { "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
3036 { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
3037 { "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_recognition}, "set error detection threshold (0-4)", "threshold" },
3038 { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
3039 { "sync", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
3040 { "threads", HAS_ARG | OPT_FUNC2 | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
3041 { "autoexit", OPT_BOOL | OPT_EXPERT, {(void*)&autoexit}, "exit at the end", "" },
3042 { "exitonkeydown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_keydown}, "exit on key down", "" },
3043 { "exitonmousedown", OPT_BOOL | OPT_EXPERT, {(void*)&exit_on_mousedown}, "exit on mouse down", "" },
3044 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&loop}, "set number of times the playback shall be looped", "loop count" },
3045 { "framedrop", OPT_BOOL | OPT_EXPERT, {(void*)&framedrop}, "drop frames when cpu is too slow", "" },
3046 { "window_title", OPT_STRING | HAS_ARG, {(void*)&window_title}, "set window title", "window title" },
3048 { "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
3050 { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
3051 { "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
3055 static void show_usage(void)
3057 printf("Simple media player\n");
3058 printf("usage: ffplay [options] input_file\n");
3062 static void show_help(void)
3064 av_log_set_callback(log_callback_help);
3066 show_help_options(options, "Main options:\n",
3068 show_help_options(options, "\nAdvanced options:\n",
3069 OPT_EXPERT, OPT_EXPERT);
3071 av_opt_show2(avcodec_opts[0], NULL,
3072 AV_OPT_FLAG_DECODING_PARAM, 0);
3074 av_opt_show2(avformat_opts, NULL,
3075 AV_OPT_FLAG_DECODING_PARAM, 0);
3076 #if !CONFIG_AVFILTER
3078 av_opt_show2(sws_opts, NULL,
3079 AV_OPT_FLAG_ENCODING_PARAM, 0);
3081 printf("\nWhile playing:\n"
3083 "f toggle full screen\n"
3085 "a cycle audio channel\n"
3086 "v cycle video channel\n"
3087 "t cycle subtitle channel\n"
3088 "w show audio waves\n"
3089 "s activate frame-step mode\n"
3090 "left/right seek backward/forward 10 seconds\n"
3091 "down/up seek backward/forward 1 minute\n"
3092 "mouse click seek to percentage in file corresponding to fraction of width\n"
3096 static void opt_input_file(const char *filename)
3098 if (input_filename) {
3099 fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n",
3100 filename, input_filename);
3103 if (!strcmp(filename, "-"))
3105 input_filename = filename;
3108 /* Called from the main */
3109 int main(int argc, char **argv)
3113 av_log_set_flags(AV_LOG_SKIP_REPEATED);
3115 /* register all codecs, demux and protocols */
3116 avcodec_register_all();
3118 avdevice_register_all();
3121 avfilter_register_all();
3129 parse_options(argc, argv, options, opt_input_file);
3131 if (!input_filename) {
3133 fprintf(stderr, "An input file must be specified\n");
3134 fprintf(stderr, "Use -h to get full help or, even better, run 'man ffplay'\n");
3138 if (display_disable) {
3141 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
3142 #if !defined(__MINGW32__) && !defined(__APPLE__)
3143 flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
3145 if (SDL_Init (flags)) {
3146 fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
3150 if (!display_disable) {
3151 #if HAVE_SDL_VIDEO_SIZE
3152 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
3153 fs_screen_width = vi->current_w;
3154 fs_screen_height = vi->current_h;
3158 SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
3159 SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
3160 SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
3162 av_init_packet(&flush_pkt);
3163 flush_pkt.data= "FLUSH";
3165 cur_stream = stream_open(input_filename, file_iformat);